build error using TS 5.6

[erlangxk]

What version of Effect is running?

3.10.4

What steps can reproduce the bug?

have dependency of effect ts 3.10.4 and using TS 5.6

What is the expected behavior?

build correctly

What do you see instead?

../../node_modules/.pnpm/[email protected]/node_modules/effect/dist/dts/Utils.d.ts:69:22 - error TS2420: Class 'SingleShotGen<T, A>' incorrectly implements interface 'Generator<T, A, any>'.
Type 'SingleShotGen<T, A>' is missing the following properties from type 'Generator<T, A, any>': map, filter, take, drop, and 9 more.

69 export declare class SingleShotGen<T, A> implements Generator<T, A> {
~~~~~~~~~~~~~

Found 1 error in ../../node_modules/.pnpm/[email protected]/node_modules/effect/dist/dts/Utils.d.ts:69

Additional information

if build with TS 5.5, it's successful.

[IMax153]

@erlangxk - we had a similar issue in the Effect playground and IIRC upgrading @types/node solved the issue?

But just in case I'm misremembering, I'll ping @gcanti as well :)

[gcanti]

IIRC upgrading @types/node solved the issue?

I think so too. Here's the commit: Effect-TS/website@4980849#diff-7ae45ad102eab3b6d7e7896acd08c427a9b25b346470d7bc6507b6481575d519

[zkx5xkt]

@IMax153 The error still occurs if ESNext.Iterator is used in the lib option

tsconfig:

{
  "compilerOptions": {
    "target": "es2024",
    "module": "nodenext",
    "strict": true,
    "lib": ["ESNext.Iterator", "DOM"]
  }
}

versions:

• typescript - 5.7.2
• @types/node - 22.10.2
• effect - 3.11.9

[donflopez]

Same thing happens to me, same versions and config as above. Can't get it working with recent versions of TS.

[IMax153]

@zkx5xkt @donflopez @erlangxk - can you folks do me a favor and try this snapshot build in your project and let me know if the issue persists?

pnpm add https://pkg.pr.new/Effect-TS/effect@495e3c4

[zkx5xkt]

@zkx5xkt @donflopez @erlangxk - can you folks do me a favor and try this snapshot build in your project and let me know if the issue persists?

pnpm add https://pkg.pr.new/Effect-TS/effect@495e3c4

I tested the snapshot build, and everything is working fine now, the issue is no longer present.
Thank you for the fix.